Eraser holder



i zen of the United Patented pr. 17, 1923.

unir-ED ASTATES einen paran' ica.

HERMAN WEIG, F CHICAGO, ILLINOIS..

arrasar. HOLDER Application ied February 1Q, 192.1. -Serial llilo. 443,790..

Illinois, have invente Va certain new and useful Improvement in Eraser Holders (Case 2), of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of vthis specication. l

My invention relates to eraser holders,and' more specifically to eraser holders wherein but a comparatively small portion ofthe eraser projects from the holder and means are provided for forcing out additional lengths of the eraser as the eraser wears out. Eraser holders of the class described are particularly adapted for use with thin flexible erasers such as are commonly employed when the abrasive effect of the erasing operation is to be confined to a limited area.

The lobjects of 4my invention are to provide an eraser holder comprising 'a tube adapted to receive a strip of erasing material, and means carried by the tubefor feedl ing the eraser out of the tube as desired; and to provide an eraser holder comprising a tube and means carried by the tube for i feeding the eraser out of the tubel as desired,

the means comprising a plunger spreadably mounted in the tube, the plungerbeing held against' angular displacement by said means, coacting with the tube.

These 'and other objects of my invention will be more clearly pointed out as the following description progresses` reference -be- ,n ing had to the accompanying drawings,

wherein:

Figure .1 is a side elevation of an eraser holder embodying the novel'features -ofmy invention;

Figure 2 is a section'taken on line 2 2 of Figure -1, looking in the direction of the arrows;

` elevation of .theholden Figure 3 is a section taken on line 3-3 of Figure 2, looking in the direction of the arrows;and'

- Figure 4 is an enlarged fragmentary side Similar characters of reference indicate similar parts throughout [the'several views.

In the drawings, the reference `character 10 designates my improved` eraser holder generally,'the holder'comprising a tube 11 which is preferably cylindrical in form. An eraserw1-2is shown disposed in thelower end ofthe tube.- Disposed against the upper of the eraser is a circular disk or plunger 13,

having a diameter slightly less than the internal diameterof thetube. The axes of the tube and plunger are substantially coincii with the pin, and a lmurled head 18, rigidly secured to -the upper end of the pin.

As shown in Figures 2 and 3, the common axis -of-the pin 15 and the4 tubular portion 14 is eccentrically disposed relatively to the common axis of the tube lllahd plunger 13.

Itis'app/ar'ent that if the pin'be'rotated, the plunger 13 must move upwardly or downwardly in the tube, the direction of such movement depending upon thedirection in which the pin is rotated. 'In this manner, the plunger may be forced downwardly in the tube, and as the plunger rests against the upper end of the eraser, any desired length of it may be fed out of :the tube.

VThe tube at its lower end terminates in a plurality of flexible fingers 19. The lingers 19 function as spring members, and frictionally engage the sides of the eraser, but are adapted to yield when the eraser is forced downwardlyin the tube by means of the plunger` 13.

In the operation of the device, the eraser may be replaced by first removing the cap 16 from the tube 11, thus also withdrawing the plunger from the tube. An eraser is then inserted in to the tube. By rotating the pin relatively. to the plunger, the plunger may be adjusted toa position in which the tubular portion 14 nearly contacts the collar 17. The plunger is then inserted into the tube, and the cap threaded upon the tube. The pin 15 may then be rotated in a proper direction by means of the knurled head 18 to cause they plunger 13 to lforce the eraser downwardly in the tube until it projects a sufficient distance from the tube. o

While I have thus described the details of one form of my invention, it is to be under. stood that I am not limited to these detailsv Vmember adapted to receive an eraser, spring means at one end to prevent accidental dsto the axis ofthe circular member, the longiplacementof the eraser, a cap detachably setudinal axes of said eraser pin and plunger' cured to the tubular member at the other lying Within the Walls of the tubular eraser end of said tubular member. a pin rotatably holder. 5 mounted in the cap. a tubular plunger In Witness whereof, I hereunto subscribe 15 threaded upon the inner endof said pin, and my name this 1st day of February, 1921. a circular member disposed between the HERMAN WEIG. plunger and the eraser and adapted to be enlVitnesses: gaged by both the eraser and plunger, the ARTHUR W. CARLSON, 10 axes of the pin and plunger bemg eccentric:V ANDREW F. WINTERcoRN. 

